What hormone prompts the final maturation of eggs in the ovarian follicles?

The hormone that prompts the final maturation of eggs in the ovarian follicles is luteinizing hormone (LH). While follicle-stimulating hormone (FSH) plays a crucial role in the early stages of follicle development and is responsible for the growth and maturation of ovarian follicles, it is LH that triggers the final maturation of the eggs before ovulation occurs.

As the follicles develop under the influence of FSH, they also produce estrogen, which helps to regulate the menstrual cycle and supports the maturation of the eggs. However, it is the surge of LH that ultimately leads to ovulation and the release of a mature egg from the follicle. This distinction is key in understanding the hormonal interplay in the ovarian cycle.

The other hormones listed, such as testosterone and estrogen, have important functions in different contexts but do not directly prompt the final maturation of the eggs in the follicles. Thus, luteinizing hormone's specific role in ovulation makes it the correct choice for this question.